Cold over, dislocated thumb?

Today I woke up with no more congestion, no more itchy throat, no more cough. Yay, so that’s pretty much over with.

However, my left thumb has been acting up lately. For the past four days I will wake up with my thumb sore and when I try to move it, it makes a strong popping noise, kinda like when you crack your fingers. Is it possible I’ve dislocated it? Pulling on the thumb a few times makes the popping go away, and the soreness goes away after about an hour after waking. Weird.